Peak Health Institute
Quick Facts
| Practice Type | Specialty |
| Location | Warrenville |
| Doctors | Jessica Montalvo MD, Functional Medicine |
About
At Peak Health Institute in Warrenville, Illinois, Katie McManigal leads a functional and integrative medicine clinic built around one core belief: healthcare should not wait for illness. McManigal serves as Founder and Medical Director. She holds board certification as a family nurse practitioner and brings over 17 years of combined clinical experience to the practice.
McManigal began her career as an RN in the Neonatal Intensive Care Unit at Lurie Children's Hospital. Her own experience navigating unexplained health symptoms drove her to pursue rigorous training in functional medicine. The practice treats conditions including chronic fatigue, autoimmune disease, Lyme disease, mold toxicity, CIRS, Long COVID, PCOS, and perimenopause. Services span IV therapies, peptide therapy, hormone replacement, testosterone therapy, fertility and postpartum support, PRP microneedling, joint injections, ketamine infusion therapy, red light therapy, and DEXA scanning. Every new patient starts with comprehensive lab testing to build a personalized treatment plan. The Peak Foundations IV Program offers a structured 6-week cellular reset for new and returning patients.
Details
Phone
(630) 791-9335Website
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Frequently Asked Questions
Every new patient at Peak Health Institute receives a comprehensive health history review at their first visit. The clinical team then runs detailed lab work to assess multiple body systems. Those results shape a personalized treatment plan specific to your biology, environment, and health goals.
The practice treats a wide range of complex and chronic conditions. These include chronic fatigue, autoimmune disease, Lyme disease, mold toxicity, CIRS, Long COVID, PCOS, perimenopause, osteoporosis, and chronic pain. The team also supports hormone optimization, fertility, and postpartum health.
The Peak Foundations IV Program is a structured 6-week plan designed to restore cellular balance and enhance energy. Both new and returning patients can enroll. The program delivers targeted IV nutrition to support foundational healing and long-term wellness.
Peak Health Institute offers a broad menu of IV therapies. Options include Vitamin IV, NAD+, Ozone, Glutathione, BIOCEAN, and Myers Cocktail formulations. Each protocol addresses specific cellular and systemic health goals.
Yes. The practice offers hormone replacement therapy and testosterone therapy for appropriate patients. The team develops individualized protocols based on comprehensive lab testing and each patient's symptoms and goals.
Peak Health Institute serves patients from its Warrenville, Illinois clinic. Patients can reach the practice directly at (630) 791-9335 to discuss appointment and consultation options.
Beyond IV therapy, the practice offers peptide therapy, PRP microneedling, joint injection therapy, red light therapy, DEXA scanning, ketamine infusion therapy, and fertility and postpartum support. com.
Peak Health Institute focuses on root-cause medicine rather than symptom management. The clinical team considers nutrition, genetics, environment, and lifestyle as interconnected factors. Treatment plans target the underlying drivers of illness to support lasting recovery.
Practice last updated March 21, 2026